style.css

* {
  margin: 0px;
  padding: 0px;
  background-color: #c1d9ec;
}

.container {
  display: inline-grid;
  gap: 1px 1px;
  position: relative;
  grid-template-columns: auto auto auto auto auto auto auto auto auto;
  top: 10vh;
  left: 40vw;
}

.box {
  background-color: white;
  height: 29px;
  width: 29px;
  color: white;
  border: 1px solid black;
  cursor: pointer;
}

.popup {
  display: none;
  position: relative;
  grid-template: auto;
  height: 100px;
  width: 100px;
  margin: 100px;
  left: 40vw;
}
p {
  width: auto;
  height: 20px;
  text-align: center;
  color: white;
  background-color: rgba(11, 34, 19, 0.8);
  font-weight: 200;
  font-family: sans-serif;
  border-radius: 5%;
}

button {
  background-color: #fefefe;
  cursor: pointer;
  border-radius: 5%;
}

button:hover {
  background-color: rgb(221, 114, 114);
  color: white;
}

.correct {
  background-color: green;
}

.bomb {
  background-color: red;
  background-image: url("https://img.icons8.com/emoji/48/000000/bomb-emoji.png");
  background-repeat: no-repeat;
  background-size: 100%;
}